/* ═══════════════════════════════════════════════════
   autocatalyse.com — landing
   sobre · dark-first · mono headers · serif body
   ═══════════════════════════════════════════════════ */

:root {
  --bg: #0a0a0c;
  --bg-soft: #111114;
  --bg-dark: #06060a;
  --fg: #e8e8ea;
  --fg-muted: #8a8a94;
  --fg-dim: #5a5a64;
  --accent: #7eecda;
  --accent-dim: #2a4a45;
  --border: #1e1e24;
  --border-strong: #2a2a30;

  --serif: "Iowan Old Style", "Charter", "Georgia", "Cambria", "Times New Roman", serif;
  --mono: "SF Mono", "JetBrains Mono", "Menlo", "Consolas", "Liberation Mono", monospace;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Helvetica Neue", "Arial", sans-serif;

  --max-w: 1180px;
  --gutter: clamp(1.25rem, 4vw, 3.5rem);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
  width: 100%;
}

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--serif);
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  width: 100%;
  max-width: 100vw;
  position: relative;
}

img, svg { max-width: 100%; height: auto; }
code, pre { word-break: break-word; overflow-wrap: anywhere; max-width: 100%; }

a { color: var(--accent); text-decoration: none; transition: opacity 0.2s; }
a:hover { opacity: 0.7; }

em { font-style: italic; color: var(--accent); }
code {
  font-family: var(--mono);
  font-size: 0.88em;
  background: var(--bg-soft);
  padding: 0.1em 0.35em;
  border-radius: 3px;
  color: var(--accent);
}

/* ═══════════════════════════════════════════════════
   HEADER
   ═══════════════════════════════════════════════════ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10, 10, 12, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 1rem var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.brand {
  font-family: var(--mono);
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: -0.01em;
}
.brand-dot { color: var(--accent); }
.brand-tld { color: var(--fg-muted); }

.site-nav {
  display: flex;
  gap: 1.75rem;
  font-family: var(--mono);
  font-size: 0.82rem;
}
.site-nav a {
  color: var(--fg-muted);
  letter-spacing: 0.02em;
  padding: 0.5rem 0;
}
.site-nav a:hover { color: var(--fg); opacity: 1; }

@media (max-width: 880px) {
  .site-nav { gap: 1.25rem; font-size: 0.78rem; }
}
@media (max-width: 640px) {
  .site-header { padding: 0.85rem var(--gutter); gap: 1rem; flex-wrap: wrap; }
  .site-nav { gap: 1rem; }
  .site-nav a:not(:last-child) { display: none; }
}

/* ═══════════════════════════════════════════════════
   HERO
   ═══════════════════════════════════════════════════ */
.hero {
  padding: clamp(3rem, 9vh, 7rem) var(--gutter) clamp(4rem, 12vh, 8rem);
  max-width: var(--max-w);
  margin: 0 auto;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: clamp(2rem, 6vw, 5rem);
  align-items: center;
}
@media (max-width: 880px) {
  .hero-grid { grid-template-columns: 1fr; gap: 3rem; }
  .hero-visual { order: -1; max-width: 300px; margin: 0 auto; }
}

.kicker {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.5rem;
}

.title {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(1.9rem, 5.5vw, 4rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin-bottom: 2rem;
  text-wrap: balance;
}
@media (max-width: 560px) {
  .title br { display: none; }
}
.title em { color: var(--accent); font-style: italic; }

.lede {
  font-size: clamp(1.05rem, 1.5vw, 1.2rem);
  color: var(--fg);
  max-width: 36em;
  margin-bottom: 2rem;
  line-height: 1.6;
}

.thesis-line {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--fg-muted);
  border-left: 2px solid var(--accent);
  padding-left: 1rem;
  margin-top: 2.5rem;
  letter-spacing: 0.01em;
}
.quote-mark { color: var(--accent); }

/* SVG visual */
.hero-visual {
  display: flex;
  justify-content: center;
}
.autocat-svg {
  width: 100%;
  max-width: 420px;
  height: auto;
}
.orbit-1 { transform-origin: 200px 200px; animation: rot1 60s linear infinite; }
.orbit-2 { transform-origin: 200px 200px; animation: rot2 45s linear infinite reverse; }
.orbit-3 { transform-origin: 200px 200px; animation: rot3 30s linear infinite; }
@keyframes rot1 { to { transform: rotate(360deg); } }
@keyframes rot2 { to { transform: rotate(360deg); } }
@keyframes rot3 { to { transform: rotate(360deg); } }

.node { transition: opacity 0.4s; }
.n1 { animation: pulse 4s ease-in-out infinite; }
.n2 { animation: pulse 4s ease-in-out infinite 0.5s; }
.n3 { animation: pulse 4s ease-in-out infinite 1s; }
.n4 { animation: pulse 4s ease-in-out infinite 1.5s; }
.n5 { animation: pulse 4s ease-in-out infinite 2s; }
.n6 { animation: pulse 4s ease-in-out infinite 2.5s; }
.n7 { animation: pulse 4s ease-in-out infinite 3s; }
.n8 { animation: pulse 4s ease-in-out infinite 3.5s; }
@keyframes pulse {
  0%, 100% { opacity: 0.3; r: 3; }
  50% { opacity: 1; r: 5; }
}
.link { animation: linkPulse 5s ease-in-out infinite; }
@keyframes linkPulse {
  0%, 100% { stroke-opacity: 0.3; }
  50% { stroke-opacity: 0.8; }
}

/* ═══════════════════════════════════════════════════
   BLOCKS
   ═══════════════════════════════════════════════════ */
.block {
  padding: clamp(4rem, 10vh, 7rem) var(--gutter);
  max-width: var(--max-w);
  margin: 0 auto;
}
.dark-block {
  background: var(--bg-dark);
  max-width: none;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.dark-block > * { max-width: var(--max-w); margin-left: auto; margin-right: auto; }

.section-num {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.5rem;
}

.block h2 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(1.8rem, 3.5vw, 2.7rem);
  letter-spacing: -0.015em;
  line-height: 1.15;
  margin-bottom: 2.5rem;
  max-width: 22em;
}

.block-lede {
  font-size: 1.1rem;
  color: var(--fg-muted);
  max-width: 42em;
  margin-bottom: 3rem;
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
}
.two-col > div h3 {
  font-family: var(--mono);
  font-size: 0.9rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}
.two-col > div p + p { margin-top: 1rem; }
@media (max-width: 720px) {
  .two-col { grid-template-columns: 1fr; }
}

/* Conviction list */
.conviction-list {
  list-style: none;
  font-family: var(--mono);
  font-size: 0.95rem;
  line-height: 2.4;
  color: var(--fg);
}
@media (max-width: 720px) {
  .conviction-list { line-height: 2; font-size: 0.9rem; }
}
.conviction-list li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.conviction-list .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}
.conviction-list em {
  font-family: var(--serif);
  font-style: normal;
  color: var(--fg-dim);
  margin: 0 0.5em;
}

/* ═══════════════════════════════════════════════════
   LOOP DIAGRAM
   ═══════════════════════════════════════════════════ */
.loop-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  grid-template-rows: auto auto;
  gap: 1.5rem;
  align-items: stretch;
  margin-bottom: 3rem;
}
.loop-node {
  background: var(--bg-soft);
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.loop-node.ext {
  border-color: var(--accent-dim);
  grid-column: 1 / -1;
}
.loop-tag {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.25rem;
}
.loop-node h3 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 1.2rem;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--fg);
}
.loop-node p {
  font-size: 0.95rem;
  color: var(--fg-muted);
  line-height: 1.55;
}
.loop-arrow {
  font-family: var(--mono);
  font-size: 1.5rem;
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
}
.loop-loop {
  font-size: 2rem;
  grid-column: 5;
  align-self: center;
}
@media (max-width: 880px) {
  .loop-grid { grid-template-columns: 1fr; gap: 1rem; }
  .loop-arrow { transform: rotate(90deg); margin: -0.25rem 0; font-size: 1.25rem; }
  .loop-loop { transform: none; grid-column: auto; align-self: auto; font-size: 1.5rem; }
  .loop-node.ext { grid-column: auto; }
  .loop-node { padding: 1.25rem; }
}

.loop-footer {
  font-size: 1rem;
  color: var(--fg-muted);
  border-top: 1px solid var(--border);
  padding-top: 2rem;
  max-width: 42em;
}

/* ═══════════════════════════════════════════════════
   PILLARS (6)
   ═══════════════════════════════════════════════════ */
.pillars {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}
@media (max-width: 720px) {
  .pillars { grid-template-columns: 1fr; }
}

.pillar {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 2rem 1.75rem;
  position: relative;
  transition: border-color 0.3s, transform 0.3s;
}
.pillar:hover {
  border-color: var(--accent-dim);
  transform: translateY(-2px);
}
.pillar-num {
  position: absolute;
  top: 1.25rem;
  right: 1.5rem;
  font-family: var(--mono);
  font-size: 0.95rem;
  color: var(--fg-dim);
  letter-spacing: 0.05em;
}
.pillar h3 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 1.35rem;
  line-height: 1.3;
  letter-spacing: -0.01em;
  margin-bottom: 1rem;
  padding-right: 2.25rem;
}
@media (max-width: 560px) {
  .pillar { padding: 1.75rem 1.4rem; }
  .pillar h3 { font-size: 1.2rem; }
  .pillar-num { top: 1rem; right: 1.1rem; font-size: 0.85rem; }
}
.pillar h3 .ratified {
  display: block;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-top: 0.4rem;
  font-style: normal;
}
.pillar p {
  font-size: 0.98rem;
  color: var(--fg);
  line-height: 1.6;
  margin-bottom: 1.25rem;
}
.pillar-evidence {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--fg-dim);
  border-top: 1px solid var(--border);
  padding-top: 1rem;
  line-height: 1.6;
}

/* ═══════════════════════════════════════════════════
   SOVEREIGNTY GRID
   ═══════════════════════════════════════════════════ */
.sov-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
@media (max-width: 880px) {
  .sov-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .sov-grid { grid-template-columns: 1fr; }
}

.sov-card {
  border: 1px solid var(--border);
  padding: 1.5rem;
  border-radius: 4px;
  background: var(--bg-soft);
}
.sov-label {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.75rem;
}
.sov-card p {
  font-size: 0.95rem;
  line-height: 1.55;
  color: var(--fg);
}

/* ═══════════════════════════════════════════════════
   LOOP SVG (figure dans section #loop)
   ═══════════════════════════════════════════════════ */
.loop-svg-figure {
  max-width: 760px;
  margin: 0 auto 3rem;
  padding: 1rem 0;
}
.loop-svg {
  width: 100%;
  height: auto;
  display: block;
}
.loop-svg-tag {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  fill: var(--accent);
}
.loop-svg-label {
  font-family: var(--serif);
  font-size: 13px;
  font-style: italic;
  fill: var(--fg);
}
.loop-svg-center {
  font-family: var(--mono);
  font-size: 14px;
  letter-spacing: 0.08em;
  fill: var(--fg-muted);
  text-transform: uppercase;
}
.loop-svg-center-sub {
  font-family: var(--serif);
  font-size: 11px;
  font-style: italic;
  fill: var(--fg-dim);
}
@media (max-width: 560px) {
  .loop-svg-figure { margin-bottom: 2rem; }
  .loop-svg-tag { font-size: 9px; }
  .loop-svg-label { font-size: 11px; }
  .loop-svg-center { font-size: 11px; }
  .loop-svg-center-sub { font-size: 9px; }
}

/* ═══════════════════════════════════════════════════
   TIMELINE (section "mutation racontée")
   ═══════════════════════════════════════════════════ */
.timeline {
  list-style: none;
  position: relative;
  padding: 0 0 0 0;
  margin: 0 auto;
  max-width: 760px;
}
.timeline::before {
  content: "";
  position: absolute;
  left: 1.35rem;
  top: 0.5rem;
  bottom: 0.5rem;
  width: 1px;
  background: var(--accent-dim);
}
@media (max-width: 560px) {
  .timeline::before { left: 1.1rem; }
}

.timeline-step {
  position: relative;
  display: grid;
  grid-template-columns: 3rem 1fr;
  gap: 1.25rem;
  padding: 0 0 2.25rem 0;
}
.timeline-step:last-child { padding-bottom: 0; }
@media (max-width: 560px) {
  .timeline-step { grid-template-columns: 2.5rem 1fr; gap: 1rem; padding-bottom: 1.75rem; }
}

.timeline-marker {
  width: 2.7rem;
  height: 2.7rem;
  border-radius: 50%;
  background: var(--bg);
  border: 1.5px solid var(--accent-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-size: 0.9rem;
  color: var(--accent);
  letter-spacing: 0.02em;
  position: relative;
  z-index: 1;
}
@media (max-width: 560px) {
  .timeline-marker { width: 2.2rem; height: 2.2rem; font-size: 0.8rem; }
}

.timeline-tag {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.timeline-body h3 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(1.15rem, 1.7vw, 1.4rem);
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--fg);
  margin-bottom: 0.75rem;
  text-wrap: balance;
}
.timeline-body p {
  font-size: 0.98rem;
  color: var(--fg-muted);
  line-height: 1.65;
  max-width: 42em;
}
.timeline-body p em { color: var(--accent); font-style: italic; }

.timeline-footer {
  margin: 2.5rem auto 0;
  max-width: 760px;
  font-size: 0.95rem;
  color: var(--fg-muted);
  font-style: italic;
  border-top: 1px solid var(--border);
  padding-top: 2rem;
}

/* ═══════════════════════════════════════════════════
   STATE
   ═══════════════════════════════════════════════════ */
.state-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  margin-bottom: 2.5rem;
}
.state-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1.75rem, 3.5vw, 2.75rem);
  margin-bottom: 2.5rem;
}
@media (max-width: 960px) {
  .state-grid-3 { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px) {
  .state-grid { grid-template-columns: 1fr; }
  .state-grid-3 { grid-template-columns: 1fr; }
}

.state-block h3 {
  font-family: var(--mono);
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-strong);
}

.state-list {
  list-style: none;
}
.state-list li {
  display: grid;
  grid-template-columns: 3.25rem 1fr;
  gap: 1rem;
  align-items: baseline;
  padding: 0.6rem 0;
  border-bottom: 1px dashed var(--border);
  font-size: 0.95rem;
  color: var(--fg);
}
.state-list .num {
  font-family: var(--mono);
  font-size: 1.4rem;
  font-weight: 500;
  color: var(--accent);
  text-align: right;
  letter-spacing: -0.02em;
}
@media (max-width: 560px) {
  .state-list li { grid-template-columns: 2.75rem 1fr; gap: 0.75rem; font-size: 0.9rem; }
  .state-list .num { font-size: 1.2rem; }
}

.state-list-soft {
  list-style: none;
}
.state-list-soft li {
  padding: 0.55rem 0 0.55rem 1.5rem;
  border-bottom: 1px dashed var(--border);
  position: relative;
  font-size: 0.95rem;
  color: var(--fg);
  line-height: 1.55;
}
.state-list-soft li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-family: var(--mono);
}

.state-footer {
  font-size: 0.95rem;
  color: var(--fg-muted);
  font-style: italic;
  max-width: 42em;
  border-top: 1px solid var(--border);
  padding-top: 2rem;
}

/* ═══════════════════════════════════════════════════
   CLOSING
   ═══════════════════════════════════════════════════ */
.closing {
  text-align: center;
  padding: clamp(5rem, 14vh, 9rem) var(--gutter);
}
.closing-title {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(1.8rem, 5vw, 3.5rem);
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: 2rem;
  max-width: none;
  text-wrap: balance;
}
@media (max-width: 560px) {
  .closing-title br { display: none; }
}
.closing-lede {
  font-size: 1.1rem;
  color: var(--fg-muted);
  max-width: 32em;
  margin: 0 auto;
}

/* ═══════════════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════════════ */
.site-footer {
  border-top: 1px solid var(--border);
  background: var(--bg-dark);
  padding: clamp(2.5rem, 6vh, 4rem) var(--gutter) 2rem;
}
.footer-grid {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2.5rem;
}
@media (max-width: 720px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
}

.footer-brand {
  font-family: var(--mono);
  font-size: 0.95rem;
  margin-bottom: 0.5rem;
}
.footer-baseline {
  font-size: 0.85rem;
  color: var(--fg-muted);
  max-width: 22em;
}
.footer-label {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--fg-dim);
  margin-bottom: 0.6rem;
}
.site-footer a {
  font-family: var(--mono);
  font-size: 0.85rem;
  line-height: 1.9;
  color: var(--fg-muted);
  word-break: break-word;
}
.site-footer a:hover { color: var(--accent); opacity: 1; }
.muted { color: var(--fg-dim); font-size: 0.78rem; }

.footer-bottom {
  max-width: var(--max-w);
  margin: 0 auto;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--fg-dim);
  text-align: center;
  letter-spacing: 0.02em;
}

/* ═══════════════════════════════════════════════════
   ACCESSIBILITY
   ═══════════════════════════════════════════════════ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* Focus visibility */
a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}